坚固和可持续的固体-固体相变材料通过可逆交叉连接实现热管理
Fubin Luo1, Yaofei Xu1, Dongliang Wang2
1Engineering Research Center of Polymer Green Recycling of Ministry of Education, College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou 350007, People's Republic of China. luofubin@fjnu.edu.cn.
Materials horizons
|March 31, 2025
概括
新型固体-固体相变材料 (SSPCMs) 使用玻璃体系统克服了泄漏和刚性问题. 这些可持续的SSPCM提供了增强的热能存储,形状记忆和自我修复能力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续能源 可持续能源
背景情况:
- 变相材料 (PCM) 对热能存储至关重要,但存在液体泄漏和机械性能差的问题.
- 现有的PCM往往缺乏广泛的实际应用所需的耐用性和稳定性.
- 解决这些局限性是释放PCM在热管理中的全部潜力的关键.
研究的目的:
- 开发新的,坚固的,可持续的固体-固体相变材料 (SSPCMs).
- 克服传统PCM中固有的液体泄漏和固体刚性的挑战.
- 设计SSPCM具有增强的热能存储,形状记忆和自我修复功能.
主要方法:
- 一个碳基-环氧基反应系统的设计是通过交叉连接来创建可逆的玻璃结构.
- 评估了合成的SSPCM的机械性能,相位稳定性和热性能.
- 研究了化 (BN) 添加对导热性的影响.
主要成果:
- 开发的SSPCM表现出卓越的相位稳定性,高拉伸强度 (13.5MPa) 和破裂时的延伸 (45%).
- 这些材料表现出高相位过渡度,达到高达92.01Jg-1.
- 由于可逆网络重组,SSPCM展示了智能形状记忆效应,可回收性和自我修复特性.
- 通过结合BN实现了增强的导热性,保持了性和其他功能.
结论:
- 新型玻璃式SSPCM有效地解决了传统PCM的局限性,提供了卓越的机械强度和稳定性.
- 这些材料具有出色的热能储能能力,再加上诸如形状记忆和自我愈合等高级功能.
- 纳入BN进一步提高了导热性,将这些SSPCM定位为先进热管理解决方案的有希望的候选者.
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